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Multiple Choice

Which pericardial layer is attached to the outer surface of the heart and forms part of the heart wall?

The visceral layer of the serous pericardium, also called the epicardium, is the layer that directly covers the surface of the heart and becomes part of the heart wall. It is tightly adherent to the myocardium and is continuous with the parietal layer around the bases of the great vessels, forming the outer part of the heart’s wall. The fibrous pericardium provides the outer protective sac, while the serous pericardium (parietal and visceral layers) creates the closed, fluid-filled space that reduces friction during heartbeats.

The visceral layer of the serous pericardium, also called the epicardium, is the layer that directly covers the surface of the heart and becomes part of the heart wall. It is tightly adherent to the myocardium and is continuous with the parietal layer around the bases of the great vessels, forming the outer part of the heart’s wall. The fibrous pericardium provides the outer protective sac, while the serous pericardium (parietal and visceral layers) creates the closed, fluid-filled space that reduces friction during heartbeats.